The invention relates to a
measurement device (9) for detecting the absolute
angle of rotation (f) of a rotating measurement object, wherein a first
gear wheel (Z1) is allocated to the shaft (8) of the measurement object, wherein the first
gear wheel (Z1) is engaged directly or indirectly with at least one second
gear wheel (Z2) and a third gear wheel (Z3) and wherein the tooth counts (z1, z2, z3) of the individual gear wheels (Z1, Z2, Z3) are different from each other, wherein a rotation angle
encoder (D1, D2, D3) is allocated to each gear wheel (Z1, Z2, Z3) which detects the angles of rotation (fz1, fz2, fz3) of the allocated gear wheels (Z1, Z2, Z3), wherein there is a computing unit which determines at least the difference (fz1 - fz2) in the
angle of rotation of the second gear wheel (Z2) to the first gear wheel (Z1) and the difference (fz1 - fz2); in the
angle of rotation of the third gear wheel (Z3) to the first gear wheel (Z1) and, based on a sum (SumDiff = (fz1 - fz2) + (fz1 - fz3)) of the differences (fz1 - fz2, fz1 - fz3) of the determined angles of rotation (fz1, fz2, fz3) of the gear wheels (Z1, Z2, Z3), determines the number of whole-number revolutions and the remaining angle of rotation (fz1) of the shaft of the measurement object.